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2 Shets-Sheet 1.

(No Model.)

J. ZIMMERMAN.

OAR HEATER.

Patented Jan. 22, 1889.

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n. rnzns. Phfllo-litbognplmr, Washington. DV :2

(No Model.)

2 Sheets-Sheet 2,

J. ZIMMERMAN.

GAR HEATER.

Patented Jan. 22, 1889.

N. PETERS. Pwlo-Lilhu har, Wnihmgtun. D. C,

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UNITED STATES PATENT JOHN ZIMMERMAN, OF CINCINNATI, OHIO, ASSIGNOR TO THE ZIMMERMAN MACHINE COMPANY.

CAR-H EATER.

SPECIFICATION forming part of Letters Patent No. 396,639, dated January 22, 1889.

Application filed January 3, 1888. Serial No. 259,842. (No model.)

To all whom it may concern: ported in the chamber O by the lugs c c. In

Be it known that 1, JOHN ZIMMERMAN, a the bottom of this furnace is a grate, F,which citizen of the United States, residing at Oinmay be supported on a longitudinal pivot, as cinnati, countyof I'Il.ll1lll30l1,2tl1(l State of Ohio, at f, Figs. 3 and i. The pivot is placed at one have invented certain new and useful Imside of the middle line, and a lug, f is pro- 5 5 provements in Heaters for Railway or Street vided under the longer end to prevent it from Cars, of which the following is a full, clear, tipping. The other end can then be easily and exact description. tilted for shaking or dumping. In. the top of I\lyinvention relates to heaters for railway this furnaceE is a hinged door, G, for supply- IO or street cars; and it consists of various iming fuel. Near the top is a longitudinal eXten- 6o provements upon the heater described in my sion, H. This extension accomplishes a double patent, No. 309,279, granted December 16, purpose in raising the end of the furnace and 1884. casing over the car-axle, and it also forms a My object is to produce a heater which is flue, producing a more perfect combustion resuspended beneath the car, so as not to occupy gardless of the direction of motion of the car. 6 5 any space in. the car-itself, and which will sup- On the top it is provided with a collar, 71, to ply a constant current of fresh air heated to a receive the smoke-pipe 7t. proper degree,and so arranged that itis easily IVhen the heater is arranged to have the attended to. smoke discharged through a pipe extending The nature, construction, and operation of up through the car, the top of the casing O my improvement will be more fully underabove the collar h is provided with a flanged stood by reference to the accompanying drawcollar, 1, to receive and support an outer pipe, ings, forming part of the specification. J, which latter forms an annular chamber Figure 1 is a side elevation, in section, of one around the smoke-pipe h. The pipe J is per- 2 5 end of a car with my improved heater. Fig. forated to permit the heated air to pass out 2 is a top plan view of the floor of the car and into the car, and lest it might become hot the heater. Fig. is a cross-section through enough to burn substances coming in contact the line 3 3 in Fig. 2. Fig. 4 is a cross-section with it I provide guards consisting of strips of of the fire pot. Fig. 5 is a horizontal section wood. This is done by placing a short perfo- 0 through line 5 5, Fig. 3. Fig. 6 is aside view rated pipe, K, around the outside of the of the ring-supporting n'otecting-slats. Fig. flanged collar I and surrounding the pipe J.

7 is a horizontal section through the line 7 7 At the top of this short pipe is a mortised ring in Fig. Fig. 8 is a top, and Fig. 9 a side, or collar, L, (shown more fullyin Figs. 5 and view of the flanged ring or collar for the pipe. 6,) having mortisesZZ, which receive the ends 3 5 Fig. 10 is a top plan view of the car-floor and of strips of wood Z, which extend up along the heater, with the heater in reverse position. outside of the pipe and are supported at their In Fig. 1, A is an ordinary street-car, andB top by a similar ring and serve as guards to the front platform. Through an opening in the pipe J.

the floor of the car is suspended the casing C, J is aband for holding the strips in place.

40 supported by the flange c. This casing is pref- A fire being started in the fire-box E, the erably made of cast-iron, the top being covmotion of the car causes a strong draft and ered in part or entirely with an iron grating produces a hot fire. In the lower edge of the or register, D, a portion of which is hinged, as casing O around the bottom of the fire-box are shown at d, the hinge being on the under side, apertures admitting fresh air to the space or 5 thus leaving the top surface unbroken. In chamber surrounding the firebox E, as indi- 5 the bottom of this casing is awide opening to cated by the arrows. This airbecomes heated permit the bottom of the lire-pot or furnace to and passes up through the grating D into the extend through it. Vithin this casing C is a car and will keep the air constantly warmed. furnace or fire-box, E, preferably cast in one The fuel is supplied by lifting the hinged 50 piece, the bottombeing entirelyopen and supgrating D and door G. here a supply of IOC) fuel is desired, it is carried in a box. suspended beneath the platform, as shown at M. The coal-looX is inserted through a hole in the floor of the platform and supported by the flanges 'm. m and provided with the hinged lid M. In thus providing a separate coal-box M it is not necessary to cut through the sill of the car; but the coal-box and the furnace are on either side of it.

\Vhere it is desired to avoid carrying the pipe through the car, I arrange the heater as shown in Fig. 10. The fire-box E, and, indeed, the casing, are reversed, and the pipe P carried forward instead of upward under the sill of the ear and into the coal-box under the front platform, where it is provided with an elbow, P, carrying it to one side and then up above the platform and through the roof of the car.

The fire-box is so arranged and constructed that the motion of the car will produce the desired draft whichever way it is arranged. The entire bottom of the furnace is open to receive the grate. The air is admitted only at the bottom, but very freely there, so that a sufficient supply of air and draft is produced whichever way the car is moving, thus enabling me to reverse the furnace.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is

1. Theherein-described improved car-heater,

consisting of a casing supported at its upper edge in the floor of the interior of the car, a perforated cover for said casing composed of sections hinged together, a furnace or fire-box having a cover, G, supportedimmediately beneath the perforated cover of the casing, a smoke-pipe, 7:, attached to the furnace or firebox and passing directly upward through one of the sections of the perforated cover and also through the interior of the ear substantially as shown and set forth.

2. In a car-heater, the furnace or fire-box supported in the car, the smoke-pipe 71., a perforated metal casing surrounding said smokepipe, and an open frame or guard composed of strips of wood or other non-conducting material surrounding the said perforated casing, with a space intervening between said casing and frame, substantially as shown and described.

In a ear-heater, the furnace or fire-box supported in the car, the smoke-pipe 7L thereof provided with a surrounding perforated metal casing, and a frame or guard of wood or other non-coiuluctin material surroundin the perforated casing, substantially as shown and described.

JOHN ZIMMERMAN. \Vitnesses:

GEORGE IIEIDMAN, ARTHUR STEM. 

